baber/WOPTO huggingface dataset:
Patent GB-446508-A (GB)
Title: Improvements in and relating to harrows
IPC: A01G1/12
Filed: 1934-10-25
Abstract: 446,508. Implements for working land and treating turf &c. CLARK, C. F., Ripley Grange, Debden Lane, Loughton, Essex. Oct. 25, 1934, No. 30668. [Classes 6 (i) and 6 (ii)] A harrow which may be used for removing worm-casts and dew from lawns, distributing top dressings, levelling seed-beds, &c. comprises a frame of bottomless box-like structure and a screen essentially consisting of metal rods or wires arranged substantially transversely to the direction of motion of the harrow in use and constituting the lowermost part of the harrow. The frame a may be of heavy wood or cast iron, and may be braced or partitioned internally and weighted. It is drawn by means of flexible attachments connected to lugs c. The transverse wires h may be of steel and may be secured by staples, their ends being bent upwardly and driven into the frame a. Bracing strips, rods, or wires g are secured in the same way above the transverse wires h and are spot welded or otherwise fastened to them. The bracing wires may be interlaced with the transverse wires. Several harrows may be connected together to form a gang, independent vertical movement of each harrow being allowed for.
Patent GB-1097659-A (GB)
Title: Improvements in or relating to waterproof watches
IPC: G04B39/02
Filed: 1966-07-08
Abstract: 1,097,659. Watches. P. CAPRARA. July 8, 1966 [July 9, 1965], No. 30733/66. Heading G3T. A waterproof watch comprises a back 3, a bezel 4 and a glass 5, a water resistant packing ring 9 being compressed between the back and the bezel to a degree limited by a heel 7 of the glass. The bezel 4 is fixed to the back 3 by a bayonet type locking device 8 and the watch movement 1 is held in place by a shoulder 10 bearing against a dial 2. In a modification, Figs. 2, 3 (not shown) for a watch having a square case, the movement is supported by two screws (11, 12) located in diagonally opposite corners of the case, the heads of the screws engaging a groove (13) in the movement 1.
Patent GB-341415-A (GB)
Title: Improvements in and relating to motor spirit
IPC: C10L1/06
Filed: 1929-10-10
Abstract: An anti-knocking ingredient for mixture with a hydrocarbon motor fuel is produced from low-temperature tar by first removing the volatile constituents therefrom by distillation at a temperature below 150 DEG C. in a current of an inert gas e.g. nitrogen, and thereafter distilling a further fraction from the residue by reducing the pressure or passing in steam, without increasing the temperature. The oil so produced is freed from tar acids and bases by washing, and after drying is mixed with kerosene, petrol, shale oil or coal tar distillates of high boiling point or mixtures of these.
Patent GB-409229-A (GB)
Title: Improvements in x-ray installations
IPC: H05G1/24
Filed: 1933-11-06
Abstract: 409,229. R÷ntgen-ray apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Nov. 6, 1933, No. 30775. Convention date, Nov. 24, 1932. Addition to 396,803. [Class 39 (i).] In a R÷ntgen-ray installation as claimed in the parent Specification, the condenser supplying the exposure tube is shunted during its discharge, as soon as a sufficient blackening of the photographic plate has been obtained. The shunting preferably occurs 0.1 second, or less, after switching on the anode current, and the current through the tube is preferably interrupted before the potential drop at the condenser exceeds a value of 20 per cent.
Patent GB-959089-A (GB)
Title: Improvements in or relating to means for duplicating
Inventor: NEWMAN DOUGLAS ALEXANDER
IPC: B41M5/025
Filed: 1960-09-07
Abstract: 959,089. Printing surfaces. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Inc. Sept. 7, 1960, No. 30783/60. Heading B6C. [Also in Division D2] In a method of preparing the design on a master sheet for use in duplicating, pictorial illustrations or other matter can be copied on the master sheet from an original by an arrangement comprising a transparent transfer sheet 10 with an attached transparent transfer layer 11 overlying a transparent master sheet 12, and an original 13 having a pictorial illustration 14 on its surface in contact with the master 12, whereby the illustration 14 is visible from above and can be copied on to the master 12 by applying pressure on the transfer sheet 10 by means of a stylus, pencil, or the like. Where a mirror image is required on the master 12, the latter is placed on top of the transfer sheet 10 overlying the layer 11, and the sheet 10 is placed over the original 13. The inscribing surface 20 on the sheet 10, or that on the master sheet in the mirror image method, may be frosted or otherwise treated so that the image being traced on the inscribing surface can be seen. The transfer sheet 10 may be parchment or a film of vinyl, polyethylene terephthalate, cellulose acetate, or polyvinylidene chloride. The transfer material 11 is preferably entirely released from the sheet 10 on impact or pressure, and may comprise paraffin wax, carnauba wax, spermaceti wax, beeswax, or polyethylene glycol. For use in the usual hectograph spirit duplicating machine, the transfer material 11 may contain one or more complementary colour formers which are transparent, and the copy sheets are wetted by a solution containing a complementary colour former: or colour may be produced on copy sheets by the use of active reagents such as ferric chloride and gallic acid in the material 11 and the copy sheets.
Patent GB-445093-A (GB)
Title: Improvements in or relating to vehicle and aircraft bodies
IPC: B60J5/10
Filed: 1935-11-18
Abstract: 445,093. Vehicle doors. WARD, C. F., 8, Broadway, Westminster. Nov. 18, 1935, No. 30815. Addition to 441,149. [Class 108 (i)] In vehicle doors as described in the parent Specification in which pairs of parallel plates are provided on the door meeting edges with interengaging projections and recesses, the plates being parallel to the plane of the door the plates may be disposed at right angles to the plane of the door and the door and door frame may be provided with interengaging recesses and projections on the upper, lower, and hinge sides of the door. Figs. 1 and 3 shows channels 2 secured to the door and door frame at the hinge side thereof and provided with interengaging projections and recesses 3. Similar devices may be fitted to the upper and lower and meeting edges of the doors. Fig. 7 shows channels 6 in which the flanges are disposed at right angles to the plane of the door and the channels are welded &c., to attachment plates 7 by which they are secured to the door and door frame. The pins or pegs and apertures described in the parent Specification could also be applied to the door and door frame at the upper, lower and hinge sides. The invention is applicable to all kinds of vehicle bodies including aircraft.
Patent GB-1527018-A (GB)
Title: Coupling assembly
IPC: F16L37/088
Filed: 1977-07-22
Abstract: 1527018 Pipe couplings UNITED CARR Ltd 22 July 1977 [23 July 1976] 30851/76 Headings F2G and F2H A spigot 12 projecting from a fluid reservoir 10 and which is provided with a circumferential rib 14, is held in a cylindrical bore in an hydraulic cylinder 11, the bore having a circumferential recess 22 by means of a clip 25 of plastics material, the clip having an axial split (not shown), which enables it to enter within the bore, and an end edge which can then spring out to engage within the recess 22 as shown and hold the spigot 12 in place. A seal is provided by a ring 32, and the axial length of the clip 25 is such that it can be engaged by a pair of pliers with C-shaped jaws inserted between the reservoir 10 and cylinder 11 to release the spigot 12. In an alternative form, the clip is made of steel and is provided with prongs bent outwardly from the sleeve to engage within the recess 22.
Patent GB-945185-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B75/18
Filed: 1961-08-28
Abstract: 945,185. Two-stroke engines. J. R. COXON. Aug. 24, 1962 [Aug. 28, 1961], No. 30945/61. Heading F1B. A revolving cylinder engine comprises a rotor 7 revolving with annular clearance 20 in a stationary casing 1 and formed with an open-ended cylinder containing pistons 3, 4, attached to a stationary crank-shaft 2, the combustion chamber being formed by the clearance space 20 above the pistons and between the periphery of the rotor and casing. The combustion chamber is sealed by sealing rings 12 and in the two stroke engine shown, the casing 1 is provided with intake and exhaust manifolds 19, 18 associated with intake and exhaust ports 17, 17a. The charge is compressed between the pistons 3, 4, and transferred to the cylinder spaces through transfer ports.
Patent GB-1474998-A (GB)
Title: Forming apertures in a metal sheet
IPC: H01J9/14
Filed: 1974-07-12
Abstract: 1474998 Etching PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 July 1974 [16 July 1973] 30973/74 Heading B6J Metal foil 1 is provided with masks 3, 5 on both sides, then the apertures 7 in mask 3 are closed by application of synthetic material member 11 while etchant is sprayed against the foil through apertures 9 to form cavities 13. Then the member 11 is removed and etchant is sprayed against the foil through the apertures 7 to form smaller cavities communicating with the cavities 13. The apertured foil so produced is used as a shadow mask in a colour television display tube. Preferably the foil 1 is an extended tape and the member 11 is a tape or endless band, adhering to the foil at their edges.
Patent GB-991759-A (GB)
Title: Activating chemical reactions
IPC: B01F11/02
Filed: 1961-08-28
Abstract: Catalysts activated by sonic and ultrasonic vibration are used to prepare (a) water from hydrogen and oxygen, using a hot platinum wire, (b) ammonia from hydrogen and nitrogen using an iron wire, (c) oxygen and hydrogen from hydrogen peroxide using a platinum or gold wire, (d) carbon monoxide and hydrogen from methane and water using a nickel, cobalt or iron wire, (e) carbon and hydrogen by hydrocarbon cracking using an iron, copper or nickel wire, (f) sodium cyanide from sodium carbonate, carbon and nitrogen using an iron wire, (g) carbon dioxide from carbon monoxide and hydrogen using a copper or manganese oxide wire, (h) nitric acid from ammonia and oxygen using a platinum wire, and (i) sulphur trioxide from sulphur dioxide and oxygen using a platinum or vanadium oxide wire.ALSO:Catalysts actuated by sonic and ultrasonic vibrations are used to prepare (a) formaldehyde from methanol using a copper or silver wire, (b) acetic acid from ethanol using a hot platinum wire, and (c) methanol from carbon monoxide and hydrogen using a copper, silver or platinum wire.ALSO:Unsaturated liquid fats are hydrogenated using a nickel wire activated by sonic and ultrasonic vibrations.
Patent GB-866041-A (GB)
Title: Improvements in or relating to the recovery of germanium
Inventor: COUTEUR PETER LE
IPC: C22B41/00
Filed: 1958-09-29
Abstract: Germanium tetrachloride is obtained from an aqueous solution containing fluogermanic acid, by adding an excess of ammonia to obtain a precipitate which is separated, and distilling germanium tetrachloride from a mixture of the precipitate and hydrochloric acid.  The solution of fluogermanic acid may be a solution obtained in the etching of germanium with an aqueous solution of hydrogen peroxide and hydrofluoric acid.  The germanium tetrachloride may be hydrolysed with water to germanium dioxide, and the germanium dioxide may be reduced to germanium by heating in hydrogen.  An example is given.
Patent GB-1069483-A (GB)
Title: Production of aluminium and aluminium/silicon alloys
IPC: C22B21/00
Filed: 1964-08-04
Abstract: A process for the production of Al-Si alloys comprises heating alumina, silica elemental silicon and a carbonaceous reducing agent in a furnace to produce a crude alloy which is tapped and cooled to produce a purified Al-Si alloy liquid phase and solids comprising Si and Al-Si eutectic. The solids are removed and comminuted, the coarse fraction (i.e. that retained on a screen of from 30-300 U.S. standard mesh size) being substantially pure Al-Si alloy, which may be returned to the crude alloy or to the purified alloy, and fine fraction containing elemental silicon which can then be recycled to the furnace feed. When impure feed materials have been used the fine fraction (preferably after further comminution tc-270 mesh) may be subjected to flotation in an aqueous solution containing a soluble fluoride salt and a fluorine containing acid.  The Al-Si alloy may be treated with liquid Pb, Zn or Hg in a conventional manner to extract commercial purity aluminium.
Patent GB-1434032-A (GB)
Title: Draught control apparatus
IPC: F23L17/16
Filed: 1972-07-04
Abstract: 1434032 Draught inducers G APPLEGATE 4 July 1973 [4 July 1972] 31231/72 Headings F4B and F4J A draught inducer for insertion in a boiler flue comprises an open ended tubular housing 1 of square section with a lateral connection 2 to the outlet of a blower 3, a flared tubular member 8 with its larger end 10 upstream of said connection 2 and attached to the housing and a flared tubular member 9 concentric with member 8, the blower output in the generally converging space defined by said members 8 and 9 producing an injector effect on the waste gases entering said member 8. The housing is of polygonal, e.g. square or rectangular crosssection and the smaller of members 8 and 9 are of circular cross-section. The blower 3 is disposed in a recess 4 in the flue wall W or may be disposed substantially at ground level (Fig. 4). The invention may also be applied to a flue of rectangular cross section (Fig. 3). Specication 802,920 is referred to.
Patent GB-826303-A (GB)
Title: Apparatus for the rotation of drums
IPC: C12C1/033
Filed: 1957-10-07
Abstract: 826,303. Ratchet gearing. COLUMBIA MALTING CO. Oct. 7, 1957 [March 15, 1957], No. 31295/57. Class 80 (3). In ratchet mechanism for rotating a drum such as a kiln for malting grain, the ratchet teeth of curved rack sections 13 secured around the drum 11 are engaged by a driving pawl in the form of a bar 39 carried between a pair of spring-loaded levers 37 pivoted on coaxial pins 35 held in a yoke 33 which is reciprocated by an hydraulic cylinder 21, the yoke 33 being located in relation to the rack 13 by means of the two pivot pins 35 which project into circumferential grooves 47 on opposite sides of the rack. Backrunning is prevented by three pawl bars 85, 86, 87 carried by links 82 pivoted to a pair of arcuate bars 73 in turn pivoted at 71 to a spring-loaded pull bar 51. The pivot pins 71, and the pivot pins of the links 82 all extend into the grooves 47. The bars 85, 86, 87 are so spaced that the drum cannot run back more than one third of a tooth space. Each bar is held against the ratchet teeth by a flat spring, Fig. 4 (not shown), secured to a respective yoke 76, Fig. 2 (not shown), interconnecting the two arcuate bars 73. The cylinder 21 may be single or double acting and is pivotally mounted at 27. After each operative stroke there is a slight backward movement of the drum which is cushioned by the spring 65 loading the bar 51, and which may also be cushioned by temporarily restricting the fluid flow to the cylinder 21. In a modification a second hydraulic cylinder and pawl mechanism is provided in place of, or in addition to, the backrunning-preventing mechanism, the two hydraulic cylinders being actuated alternately so that the drum 11 is continuously rotated.
Patent GB-244481-A (GB)
Title: A new or improved process for the manufacture of pigments
IPC: C09C1/16
Filed: 1925-12-11
Abstract: Pigments are formed from oxides or compounds of lead with oxygen-containing inorganic acids by heating these substances up to about 300 DEG  C. with exclusion of air, with organic compounds of a basic or indifferent nature and of high boiling point such as vaseline, paraffin, ceresine, waste lubricant oils, waste anthracene and other hydrocarbons.  Tar, pitch, and phenols of any kind may also be used.  The lead compounds may be mixed with the liquid organic substances and heated, or the organic substances may be vaporized and passed over the lead compounds.  In the latter case, volatile hydrocarbons such as methane may be used. In an example, 100 kg. of litharge is mixed with 3-5 kg. of cylinder oil, vaseline oil or resin oil, and heated to 300 DEG  C., air being excluded; a finely-divided grey substance results.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the like treatment of lead compounds in general or raw materials containing them, and water gas and illuminating gas were specified as suitable organic materials. This subject-matter does not appear in the Specification as accepted.
Patent GB-1473295-A (GB)
Title: Pressurised aerosol dispenser
IPC: B65B7/28
Filed: 1973-07-02
Abstract: 1473295 Making pressurized aerosol containers AEROFILL Ltd 28 June 1974 [2 July 1973] 31328/73 Heading B3A Apparatus for locating on an open container 16, Fig. 1, an aerosol valve 10 having a dip tube 18 comprises a guide passage 2 for a valve having a retainer 4 through which a dip tube can extend, a feed passage 8 for a valve extending upwardly into the guide passage at an aperture therein, a device to open and close the aperture, and a control device to open and close the retainer 4. The retainer is in the form of a funnel having jaws which can be opened or closed by a pneumatically operable cylinder. An inclined feed tube 8 communicates with an aperture 12 in the wall of a guide tube 2. The apertures is closable by a vertically movable slide valve 14. This may comprise a tube closed at one end or a tube having a port (20), Fig. 2 (not shown), of the same size and shape as the aperture and which is rotatable in the guide tube. Alternatively, a gate valve (30), Fig. 5 (not shown), may be used to close the aperture. In operation aerosol valves 10 are fed singly down a track 22A, Fig. ure 3, and are driven up the feed tube by compressed air to the valve 14. When the aperture 12 is closed the aerosol valve 10 drops from within the valve 14 to the jaws 6. The jaws are opened to allow the aerosol valve to drop on to the container rim whence it is moved to a crimping station. Piston-rods 28, 30 ensure that only one aerosol valve is present at the bottom of the feed tube at the beginning of each operation. A plurality of apparatuses can be arranged around a central axis and synchronized rotatable starwheels can be used to pass the aerosol valves and open containers to respective feed passages.
Patent GB-1218846-A (GB)
Title: Improvements relating to fuel-cell batteries
IPC: H01M8/04276
Filed: 1968-07-01
Abstract: 1,218,846. Fuel batteries. SIEMENS A.G. 1 July, 1968 [30 June, 1967], No. 31348/68. Heading H1B. The electrolyte chamber of each cell of a fuel battery 19 is connected by a separate conduit to a sub-chamber of an electrolyte distributer 4 and by another separate conduit to a collector chamber 26, the system being such that when the distributer is filled with electrolyte the increased head of electrolyte causes each cell to be flushed with electrolyte but that when the electrolyte has been restored to its original level in the sub-chambers by gravity there is no short-circuit connection between the cells through the electrolyte. As shown electrolyte is pumped from receiver 1 to feed tank 2 from which it periodically syphons into distributer 4 until the electrolyte level is as shown at 12. Short-circuit connections are formed between the cells but as the level of the electrolyte in the distributer falls below the tops of the subchambers 6-11 they are broken. The tops 29- 34 of the outlet conduits are between the bottoms and the tops of the sub-chambers 6- 11 in level so that the electrolyte levels never fall below the bottoms of the sub-chambers to prevent gas bubbles being trapped in the conduits. The varying hydrostatic pressure also serves to flush the pores of the electrodes with electrolyte. Preferably the rims of the subchambers and of the top ends of the outlet conduits are water-repellent to assist in the rapid breaking of the short circuits through the electrolyte. Electrolyte pump 3 may be operated continuously or, by means of a time regulator, discontinuously. The fuel battery may be operated with gaseous fuel and oxidant or with either or both of the fuel and oxidant dissolved in the electrolyte.
Patent GB-1055117-A (GB)
Title: Rotary fluid pressure pump or motor
IPC: F04C2/10
Filed: 1965-07-22
Abstract: 1,055,117. Rotary pumps and motors. GERMANE CORPORATION. July 22, 1965 [Nov. 18, 1964], No.31362/65. Heading F1F. A rotary pump or motor, comprising a stationary internally-toothed ring member 12, Fig. 1, secured between casing sections 10, 14 and cooperable with an eccentrically disposed externallytoothed star member 20 having one less tooth, which orbits with respect to the ring member and rotates about its own axis at a slower speed than the orbital movement, includes a valve member 60 connected by a short shaft 64 to rotate with the star member and an intermediate shaft 52 having splined connections at its ends constituting universal joints to connect it to the star member and a driven or drive shaft 36 so that at one end the shaft 52 rotates and orbits in common with the star member and at its other end rotates in common with the shaft 36. Fluid connections 74, 76 connected by annular channels 82, 84 and passages 86, 88, Fig. 6 (not shown), in the valve member with crescent-shaped recesses 70, 72 in the face of the valve member adjacent the star member 20 supply and exhaust pressure fluid depending on direction of rotation of the star member and whether the device is operating as a pump or motor. The valve member is indexed with reference to the star member so that the increasing volume cells between the toothed members are supplied with pressure fluid. With six teeth on the star member, when operating as a motor, the driven shaft 36 rotates once for every six orbits of the star member and when operating as a pump relatively slow speed imparted to shaft 36 results in relatively rapid orbiting of the star member with resulting high fluid delivery rate.